__*[05:01](en/tn/obs/help/05/01)__ "So Abram's wife, __Sarai__, said to him, "Since God has not allowed me to have children and now I am too old to have children, here is my servant, Hagar. Marry her also so she can have a child for me."
__*[05:04](en/tn/obs/help/05/04)__ "'Your wife, __Sarai__, will have a son--he will be the son of promise.'"
__*[05:04](en/tn/obs/help/05/04)__ "God also changed __Sarai's__ name to __Sarah__, which means "princess."
__*[05:05](en/tn/obs/help/05/05)__ "About a year later, when Abraham was 100 years old and __Sarah__ was 90, __Sarah__ gave birth to Abraham's son. They named him Isaac as God had told them to do."